Author: C. Fanelli

0000000000241735

AUTHOR

C. Fanelli

showing 1 related works from this author

Double Polarization Observables in Pentaquark Photoproduction

2019

We investigate the properties of the hidden charm pentaquark-like resonances first observed by LHCb in 2015, by measuring the polarization transfer KLL between the incident photon and the outgoing proton in the exclusive photoproduction of J/psi near threshold. We present a first estimate of the sensitivity of this observable to the pentaquark photocouplings and hadronic branching ratios, and extend our predictions to the case of initial state helicity correlation ALL, using a polarized target. These results serve as a benchmark for the SBS experiment at Jefferson Lab, which proposes to measure for the first time the helicity correlations ALL and KLL in J/psi exclusive photoproduction, in o…

Particle physicsFísica-Modelos matemáticosPhotonHadronpentaquarksFOS: Physical sciences01 natural sciencesexotic hadronsHigh Energy Physics - ExperimentPolarized targetHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciencesPhoton polarizationNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentPhysicsexotic hadrons; pentaquarks; hadron spectroscopy010308 nuclear & particles physicshadron spectroscopyObservablePolarization (waves)HelicityPentaquarkHigh Energy Physics - PhenomenologyHigh Energy Physics::Experiment

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